A) \[\text{1 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-10}}}\,\text{W}{{\text{m}}^{\text{-2}}}\]
B) \[\text{1 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-12}}}\,\text{W}{{\text{m}}^{\text{-2}}}\]
C) \[\text{1 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-14}}}\,\text{W}{{\text{m}}^{\text{-2}}}\]
D) \[\text{1 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-16}}}\,\text{W}{{\text{m}}^{\text{-2}}}\]
Correct Answer: B
Solution :
The minimum intensity that can be heard called threshold of hearing \[({{I}_{0}})={{10}^{-12}}W{{m}^{-2}}\]at \[1\,kHz.\]
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